we are going to have over the process of the coming design, several ongoing discussions with the tj pa, it is very important that security be managed jointly between the tower and the center. we are beginning to have the concepts for the security in the square and the lower parts of the center, so to say that is an important part of our agenda. this is looking at your standing across the street at first and mission looking back to 101 first street. although it might be hard to see on this slide, the lower five floors of the building actually have a slightly heavier metal detail, slightly deeper metal sun shades, i will go into that in some detail in a few minutes. this is an interesting notion that has come out of our work with city planning that actually creates a kind of base for this very tall building that very gently it hits the ground and this is something that is an idea that one can trace back into the history of architecture, but realized here in a very contemporary fashion. >> that base, that thicker base is at the lower five floors and the additional metal depth also does a